Heel-breasting machine



G. S. TOLMAN, JR.

HEEL BR'EASTING MACHINE.

APPLICATION man MAR. 26, 1920.

1,400,700, I Patented Dec; 20, 1921.

enonen s. romaan, art, or 'wALroLn, raassacnusnr'rs, Assrenon TO camesir-Ion MACHINERY conrona rron, or ra'rnnson,

new annsnr.

NEW JERSEY, a cameraman or HEEL-BREASTING IEACHINE.

anai co.

Application filed March 26, 1920.

tain Improvements in Heel-Breasting Ma chines, of which the followingdescription, in connection with the accompanying drawings, is aspecification, like reference characters on the drawings indicating likeparts in the several figures.

This invention relates to machines for breasting heels, and particularlyto machines for forming the breast portions of heels which have alongitudinal curvature, such heels being known as Louis or French heels.

feels of this kind have been breasted formerly to a large extent by amachine of the type disclosed in United States Letters Patent No.78%,340, granted March 7, 1905, upon application of-B. F. Mayo. Themachine disclosed in this patent is provided with a horizontal shafthaving a rotary cutter upon it and a shoe support movable tangentiallyof the path of rotation of the cutter,

a shoe being held upon the support with its longitudinal median planeparallel to the cutter shaft, and the shoe support being moved to carrythe heel across the cutter to cause the cutter to traverse the heel fromside to side and to form'a breast surface on the heel which is curvedlongitudinally of the heel. In the machine of the prior patent thecutter blades are inclined to the cutter axis so as to cause the cutterblade to act upon the heel with a scraping cut, that is, the anglebetween the advance Or leading face of the cutter blade and the portionof the breast treated by the cutter is acute. W hen the heel is liftedto engage the cutter thus arranged, the heel meets the cutter withconsiderable shock t the cutter which may result in breaking the cutteroff, the detached portion flying outwardly with great force due tocentrifugal action of the rapid rotation of the cutter, and greatlyendangering the operator. Moreover, the scraping action of the cuttingedge renders it difficult to secure as clean a cut as is desirable,particularly on the side of the heel where the heel leaves the cutter.

An object of this invention is to provide a machine of this type which,while retaining all the valuable features of the prior Specification ofLetters Patent.

eaten tea net. 20, 1921! Serial N0. 363,893.

machine, willbe entirely safe for the operlatoil and will effect asmooth out upon the lee A feature of the invention consists in anorganization including a bladed, rotary cutter, a shoe support, andmeans for effecting a relative movement of said support and said cutterto cause the cutter to trim the breast of the heel from one side of theshoe to the other side, the blades of the cutter being arranged so thatthe advance or leading-face of each blade as it comes into action is atan obtuse angle to the face of the heel upon which it acts. Asshownherein the cutter shaft is horizontal and the work support is arrangedfor substantially vertical movement to carry the work across the cutter,the planes of the advance faces of the cutter blades being arranged atan angle to the line of the direction of movement of the work support sothat the edge of the cutter blade which acts upon the heel is in advanceof the opposite or non-cutting edge of the blade and the blades act witha clearing instead of a scraping out.

As shown herein the cutter is on the end of its shaft and the cutterblades are arranged in planes which diverge with relation to the shaftand, if extended, would intersect the shaft. The blades are alsodivergent in a dir ction away from the heel.

These and other features of the invention will appear more fully fromthe following description when read in connection with the accompanyingdrawings and will be pointed out in the appended claims.

In the drawing- Figure l is a front elevation of the head of a machineembodying this invention;

Fig. 2 is an end view of a cutter head with which the machine isprovided showing its relation to a heel being breasted;

Fig. 3 is a top plan view of the cutter and heel; and

Fig. 4: is a sectional view of the heel and cutter on the line 4% ofFig. 3.

Referring to Fig. 1 of the drawing, the numeral 2 indicates the frame ofthe machine head in which is journaled a shaft 4 arranged to be rotatedrapidly by a belt 6 from any suitable source of power. A cutter head 8is attached to one end of the shaft 4 and is provided with blades 10, 12which are inclined to the axis of the shaft in such a manner that theplanes of the blades, when eX- tended, intersect the shaft. In otherwords, the blades lie in planes which are divergent with respect to theshaft. A shoe rest 1s provided against which the shoe is held nrthehands of the operator, the rest comprising, as shown, a tread plate 1 1having on the edge next the cutter a lip 16 which is elevated slightlyfrom the plane of the tread plate. The tread face of the heel of a shoeis placed against the tread plate 14 with the edge of the top liftresting against the lip 16, the hp serving to locate the heellongitudinally but being of such slight extent vertically of the heelthat substantially the entire breast face of the heel is presented forthe action of the cutter (Fig. 8). The tread face of the forepart of theshoe rests against a forepartrest 18 which preferably is arranged for adustment to accommodate lasts of different spring. As shown, the rest 18is provided with a stem 19 which is held by a split clamp in a member 20which also carries thetread plate 14. The tread plate 14: and the rest18 determine the position of the shoe in its longitudinal median planeand the lip 16 locates theshoe longitudinally, It will be observed alsothat the longitudinal median plane of the shoe is parallel with the axisof the shaft 4. The member 20 is adjustably fixed to the upper end of avertical rod 22 by means of a set screw having a handle 23. By looseningthe set'screw 23 the member 20 may be roated about the axis of the rod22 to vary the relation of the heel relatively to the cutter.

The heel engaging face of the lip 16 is arranged in the axis of the rod22 so thatthis adjustment does not disturb the position of the breastedge of the top lift which. engages it relatively to the cutter. The rod22 has a long vertical bearing 25 in a bracket 27 secured to the frameand is moved longitudinally by suitable means, for example a treadle, tocarry the shoe rest and shoe heel tangentially across the cutter. Eachof the.

cutter blades is contoured, as shown in Fig. 3, to form a'Louis orFrench heel having a longitudinal curvature, a side edge 2 1 of eachblade being sharpened to form the breast face of the heel and the endportion of 26 being sharpened and contoured to form the base portion ofthe heel. The blades of course act in turn in rapid succession upon theheel, and in order to cause the cutting edges of the, blades to act witha clearing out the blades are arranged in divergent relation relativelyto the shaft and heel as previously stated. This relation will be clearfrom Figs. 2 and 4 where it will be seen that the advance or leadingface 28 of each blade is at an obtuse angle to the breast face of theheel while in engagement therewith. The cutting edge has therefore atrue' cutting action similar to that of the cutting blade of a planeupon a piece of wood as distinguished from a scraplng actlon such asheel or at an acute angle to it. The blades therefore make a clean outupon the heel and remove the excess of material very quickly and withoutexcessive strain upon the shoe heel or upon the cutter. Breaking of thecutter blades is thereby avoided and improved results obtained upon thework.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent of the United States is:

1. In a machine for breasting Louis heels, the combination of a rotarycutter having a plurality of cutter blades, and means for supporting ashoe with its longitudinal median plane parallel to the axis of thecutter, said cutter having its cutting faces con structed and arrangedat an-obtuseangle to th breast face of the heel to cause the cutter toact upon said face with a clearing out.

2. In a machine for breast'ing Louis heels, the combination of a bladedrotary cutter, and a work support movable tangentially of the cutter,the blades of the cutter being contoured to cut the breast and baseportion of a Louis heel held on said support and said blades beingarranged to diverge away from the heel.

3. In a machine for breasting Louis heels, the combination of a shaft,abladed rotary cutter mounted on the end of the shaft, the planes of theblades when extended intersecting the shaft, and means for presenting aheel breast for the action of the cutter at the periphery of the cutterand at the side of the cutter which is toward the shaft.

4. In a machine for breasting Louis heels, the combination of a bladedrotary cutter, and a work support movable tangentially of the cutter,theblades of the cutter being contoured to cut the breast and base portionof a Louis heel held on said support and constructed and arranged toeffect a clearing out upon the heel breast.

5. In a machine for breasting Louis heels, the combination of a bladedrotary cutter on the end of a shaft, th planes of the blades whenextended intersecting the shaft, and means for presenting a heel breastfor the action of the cutter at the periphery of the cutter and at theside of the-cutter which is toward the shaft to cause the cutter bladesto act successively upon the heel with clearing cuts. T

6. In a machine for forming the breast of Louis heels, the combinationof a shaft, a cutter head on the end of the shaft, cutter blades on thehead arranged with the planes of their advance faces divergent withrespect to the shaft, and means for relatively moving a shoe and thecutter tangentially of the cutter with the heel of the shoe on the sideof the cutter next to the shaft, the

cutter blades being contoured to form the breast of the heel with alongitudinal curvature.

7. In a machine for forming the breast of Louis heels, the combinationof a shaft, a cutter head on the end of the shaft, cutter blades on thehead arranged with the planes of their advance faces divergent withrespect to the shaft and having peripheral cutting edges and sidecutting edges on the sides of the blades toward the shaft, and means forrelatively moving a heel and the cutter tangentially of the cutter tocause the peripheral edges to act on the base portion of the heel andthe side cutting edges to act on the breast of the heel.

8. In a machine for forming the breasts of Louis heels, the combinationof a shaft, a cutter head on the shaft, cutter blades on the headarranged with one side edge in advance of the other, the advance edgebeing sharpened, and means for moving a shoe tangentially of the cutterwith the heel of the shoe on the side of the cutter adjacent to thesharpened edge, said edge being contoured to form the breast of the heelwith a longitudinal curvature.

9. In a machine for forming the breasts of Louis heels, the combinationof a shoe support, a shaft, a cutter head on the end of the shaft,cutter blades on the head having peripheral cutting edges and side cutting edges on the sides of the blades toward the heel of a shoe on thesupport and non-cutting edges on the sides of the blades away from theheel, said side cutting edges breast of the heel.

10. A heel breasting machine having, in combination, a rotary cuttercomprising blades inclined to the axis of rotation, a work support, andmeans for moving rela tively the cutter and work support to cause thecutter blades to act on the heel breast with a clearing out.

11. A heel breasting machine having, in combination, a rotary cuttercomprising blades having end and side cutting edges, a work support, andmeans for relatively moving the cutter and work supportto cause the sidecutting edges of the blades to act on the heel breast with a clearingout.

12. A heel breasting machine having, in combination, a rotary cutterhead, blades arranged tangentially of the head in planes making equaland opposite angles with the axis of rotation of the head, and means forpresenting a heel breast to the convergent sides of the blades.

13. In a machine for breasting heels, the combination of a rotary cutterhaving cutting edges arranged relatively to the cutter and the heel toeffect a clearing out on the heel breast, and means for guiding the heelin a rectilinear path relatively to the cutter to cause the cutter tobreast the heel.

In testimony whereof I have signed my name to this specification.

GEORGE S. TOLMAN, J12.

